/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package delta.productcatalog.web;

import entity.Orders;
import facade.OrdersFacadeLocal;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.annotation.HttpConstraint;
import javax.servlet.annotation.ServletSecurity;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import utils.JSON;

/**
 *
 * @author Ivchenko Oleg
 */
@ServletSecurity(
@HttpConstraint(rolesAllowed = {"Administrator", "Warehouse Employee"}))
@WebServlet(name = "ReportInJspAllOrders", urlPatterns = {"/ReportInJspAllOrders"})
public class ReportInJspAllOrders extends HttpServlet {

    @EJB
    private OrdersFacadeLocal ordersFacade;

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        String status = request.getParameter("status");
        Integer warehouse = Integer.parseInt(request.getParameter("warehouse"));
        Integer user = Integer.parseInt(request.getParameter("user"));
        Integer page = Integer.parseInt(request.getParameter("page"));     
        Date start_date = request.getParameter("start_date") != null ? stringToDate(request.getParameter("start_date")) : null;
        Date end_date = request.getParameter("end_date") != null ? stringToDate(request.getParameter("end_date")) : null;
        List<Orders> orders = ordersFacade.findOrdersForReport(page, status, warehouse, user, start_date, end_date);
        JSON json = new JSON();
        String line=json.ordersForReportToJSON(orders);
        response.getWriter().write(line);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }
    
    private static Date stringToDate(String str){
        try {
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MM/dd/yyyy");
            simpleDateFormat.setLenient(false);
            return simpleDateFormat.parse(str);
        } catch (ParseException ex) {
            Logger.getLogger(ReportInJspAllOrders.class.getName()).log(Level.SEVERE, "ParseException", ex);
            return null;
        }
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
